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mihalych1998 [28]
3 years ago
13

PLEASE HELP!!! PLEASEEEE ASAPPPP

Mathematics
1 answer:
Snezhnost [94]3 years ago
6 0
At is yes I think sorry if I get it wrong
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In 1980 a movie ticket cost $2.50. Now a movie ticket costs about $10.
Schach [20]
Percent change: (new value - old value)/old value * 100
((10-2.50)/2.50) = 3 * 100 = 300%
There is a 300% increase
7 0
2 years ago
Solve by completing the square:<br> x^2 + 3x - 9 = 0
tekilochka [14]

Answer:

Step-by-step explanation:

x^2 + 3x - 9 =0

By comparing with the equation ax^2+bx+c = 0,

we get,

a = 1, b=3, c = -9

we know the formula for x is,

x = (-b±√(b^2 - 4ac))/2a

x = (-3±√45)/2

x = (-3±3√5)/2

x = (-3+3√5)/2, (-3-3√5)/2

6 0
3 years ago
Read 2 more answers
Jesse sold cupcakes and cookies yesterday. Each cupcake sold for $1.50 and each cookie sold for $0.25. At the end of the day, Je
ale4655 [162]

Answer: 19 cupcakes and 37 cookies were sold.

Step-by-step explanation:

Let x represent the number of cupcakes that Jesse sold yesterday.

Let y represent the number of cookies that Jesse sold yesterday.

If he sold 56 cupcakes and cookies combined, it means that

x + y = 56

Each cupcake sold for $1.50 and each cookie sold for $0.25. At the end of the day, Jesse had sold $37.75 worth of cookies and cupcakes. This means that

1.5x + 0.25y = 37.75 - - - - - - - - - - -1

Substituting x = 56 - y into equation 1, it becomes

1.5(56 - y) + 0.25y = 37.75

84 - 1.5y + 0.25y = 37.75

- 1.5y + 0.25y = 37.75 - 84

- 1.25y = - 46.25

y = - 46.25/ - 1.25

y = 37

x = 56 - y = 56 - 37

x = 19

7 0
2 years ago
Find the value of x. Write your answer in simplest form. WILL MAKE BRAINLIEST
lana [24]
2x^2=(3root2)^2
2x^2=9(2)
x^2=9
x= 3,-3

x=3 because your side length can’t be negative.
5 0
3 years ago
Read 2 more answers
A certain calling card gives you the following rate to call Malaysia. There is a connection fee of $0.39 which allows you to con
Paha777 [63]
F(x<40)= 0.39+(x*0.24) This formula will quantify what you have written out above. 
4 0
3 years ago
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